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Caloneis nanyiensis sp. nov. (Bacillariophyta) from Nanyi Lake of Anhui Province, China

by: Fang, Yong; Yu, Pan; You, Qing-Min; Kociolek, John Patrick; Cao, Yue; Wang, Quan-Xi; Qian, Zhi-Ping

Publication date: 2025-4-17
Usage: Attribution 4.0 International
Topics: Axial area, Caloneis, girdle, raphe, rhombic valve
Publisher: Pensoft Publishers
Collection: biodiversity
Contributor: Pensoft Publishers
Language: English
Rights: https://biodiversitylibrary.org/permissions
Rights-holder: Copyright held by individual article author(s).
Volume: 255
Item Size: 15.7M

Abstract: A new species, Caloneis nanyiensissp. nov., is described from Nanyi Lake, the largest lake in southern Anhui Province, China. Observations were made using a light and scanning electron microscope documenting the size, shape and ultrastructure of the new species. Caloneis nanyiensissp. nov. has rhombic valves with acutely rounded apices. The raphe is narrow and arched. An internal axial plate covers the alveoli, leaving small marginal openings bordered by costa, thickened and raised from the valve face. The striae are slightly radiate to parallel in the central area, becoming radiate towards the apices. By comparing the new species with similar Caloneis species, C. nanyiensissp. nov. was confirmed to be sufficiently different with respect to valve size and striae density to be recognised as new to science. The new species lives in freshwater habitats and epiphytic on Cladophora. The discovery enhances our knowledge of the diversity of freshwater diatoms in China.
Addeddate: 2025-05-02 23:53:18
Bhl_virtual_titleid: 210913
Bhl_virtual_volume: v.255 (2025)
Call number: 10_3897_phytokeys_255_145664
Call-number: 10_3897_phytokeys_255_145664
Foldoutcount: 0
Genre: article
Identifier: caloneisnanyien255fang
Identifier-ark: ark:/13960/s2mfbz33969
Identifier-bib: 10_3897_phytokeys_255_145664
Identifier-doi: 10.3897/phytokeys.255.145664
Ocr: tesseract 5.3.0-6-g76ae
Ocr_detected_lang: en
Ocr_detected_lang_conf: 1.0000
Ocr_detected_script: Latin
Ocr_detected_script_conf: 1.0000
Ocr_module_version: 0.0.21
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Page_number_confidence: 44
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Page_range: 113-122
Pages: 10
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Possible copyright status: In copyright. Digitized with the permission of the rights holder.
Ppi: 300
Source: PhytoKeys 255
Year: 2025